Find the Sum of the series 1 / 2 | C # program for the above approach ; Function to find the sum of series ; Generate the ith term and add it to the sum if i is even and subtract if i is odd ; Print the sum ; Driver Code
using System ; class GFG { static void printSeriesSum ( int N ) { double sum = 0 ; for ( int i = 1 ; i <= N ; i ++ ) { if ( ( i & 1 ) == 0 ) { sum += ( double ) i / ( i + 1 ) ; } else { sum -= ( double ) i / ( i + 1 ) ; } } Console . WriteLine ( sum ) ; } public static void Main ( string [ ] args ) { int N = 10 ; printSeriesSum ( N ) ; } }